Club Car Precedent 2004 Maintenance And Service page 100

11
ELECTRICAL SYSTEM AND TESTING
TROUBLESHOOTING GUIDE 2
SYMPTOM
Vehicle does not operate, continued
Vehicle runs slowly
Vehicle operates, but motor braking
function does not
Vehicle will run in forward, but not in
reverse or will run in reverse but not
forward
Vehicle operates, but battery charger
does not charge batteries
Page 11-16 2004 Precedent IQ System Golf Car Maintenance and Service Manual
POSSIBLE CAUSES
High pedal detect
Motor stall
Motor Failure
Speed controller failure
Speed sensor disconnected or failed
Incorrect speed setting
Wiring – improperly wired
Batteries – Batteries discharged
MCOR malfunction
Motor – loose wires
Failed motor
Vehicle is over-loaded
Speed controller failure
Brakes – improperly adjusted
Tires – under-inflated or flat tires
Wiring – improperly wired
Speed sensor disconnected or failed
Forward/Reverse rocker switch –
improperly wired
Motor – improperly wired
Speed controller – improperly wired or
failed speed controller FET
Onboard computer – gray wire
Battery charger connections – loose wires
at receptacle or batteries
Battery charger
Troubleshooting
CORRECTIVE ACTION
Cycle accelerator pedal
Cycle accelerator pedal
See Section 15 – Motor.
Replace speed controller. See Speed
Controller Removal, Section 12,
Page 12-11.
Test Procedure 13 – Motor Speed Sensor
on page 11-38
To change the programmed top speed of
the vehicle, an IQDM-P handset must be
used
Check vehicle wiring. See Wiring
Diagram on page 11-11.
Charge batteries
Test Procedure 4 – MCOR Voltage on
page 11-21
Inspect and tighten all wire connections at
the motor.
Replace motor. See Motor Removal,
Section 15, Page 15-3.
Ensure that vehicle is not over-loaded
before returning to operation.
Replace speed controller. See Speed
Controller Removal, Section 12,
Page 12-11.
See Section 6 – Wheel Brake
Assemblies.
See Section 8 – Wheels and Tires.
Check vehicle wiring. See Wiring
Diagram on page 11-11.
Test Procedure 13 – Motor Speed Sensor
on page 11-38
Test Procedure 15 – Forward/Reverse
Rocker Switch on page 11-40
Check motor wiring. See Wiring Diagram
on page 11-11.
Check vehicle wiring. See Wiring
Diagram on page 11-11.
Test Procedure 11 – Onboard Computer
Gray Wire on page 11-37
Check wire connections and tighten if
necessary.
Refer to the appropriate battery charger
maintenance and service manual.